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Educação sexual: práticas pedagógicas em aulas de Ciências de escolas da Diretoria de Ensino de Votorantim
(Universidade Federal de São Carlos, 2015-07-17)
Rodrigues, Viviani Aparecida da Silva
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Fernandes, Hylio Laganá
;
https://lattes.cnpq.br/1315602045624096
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https://lattes.cnpq.br/8453042947678465
The way sexuality manifests itself is the product of a social, historical and cultural process, which goes beyond the biological dimension and it is evident in society through behaviors, attitudes and norms. During adolescence, when the values of an individual are consolidated, sexuality is strongly influenced by the media through the several possibilities of accessing information and dynamisms of social networks. Teaching and learning about sexuality, a process herein called Sexuality Education / SE, is a duty of various segments of society and mainly of educational institutions as they have an intentional and systematic duty of fully forming an individual. Therefore, SE taught in schools should preferably promote the students' autonomy under an emancipatory perspective, so they can fully enjoy their sexuality. With the aim of knowing and analyzing SE pedagogical practices adopted by Science teachers and checking how continuing education interferes in their conceptions and attitudes in Science classes, a quantitative and qualitative research was conducted with a group of teachers from the Educational Board of Votorantim / SP. Acting as continuing education teacher, the researcher sat in the classes and suggested continuing education meetings (Technical Guidelines / TG). In order to answer the research questions, an exploratory study was carried out with a questionnaire for 23 Science teachers to answer. Later, interviews with 7 of these teachers were held in order to obtain data for the research. The data was analyzed based on categories defined by descriptors and having the analysis of the discourse as reference. On the other hand, the same syllabus that limits also legitimates the teachers' proposals regarding their difficulties. Teachers who participated in this research reported in their speeches and practices biological-hygienic and/or moral-traditionalist approaches that are not consistent with an emancipatory approach. Based on the results of this research, it is suggested that the SE can be extended to other grades and that teachers' continuing education must be stimulated in order to encourage their moral position to be able to face their pedagogical challenges.
Efeito dos íons Ni2+ nas propriedades estruturais, ópticas e morfológicas do tungstato de prata
(Universidade Federal de São Carlos, 2015-07-17)
Pereira, Wyllamanney da Silva
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Longo, Elson
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https://lattes.cnpq.br/9848311210578810
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https://lattes.cnpq.br/8206011538570093
The tungstates are important compounds and known for their optical properties. In this work, solid solutions with nickel silver tungstate, 𝐴𝑔2−2𝑥𝑁𝑖𝑥𝑊𝑂4, compositions (0, 01 ≤ 𝑥 ≤ 0, 08) were synthesized by the hydrothermal method of microwave to 140 ° C for 1 h, and to assess the influence of 𝑁𝑖2+ ions in the structural, morphological and photoluminescent of the silver tungstate (𝐴𝑔2𝑊𝑂4). Materials 𝐴𝑔2−2𝑥𝑁𝑖𝑥𝑊𝑂4 (0 ≤ 𝑥 ≤ 0.08) were characterized by X-ray diffraction (XRD), spectroscopy micro-Raman (MR) and absorption in the Infrared (IR) region. The scanning electron microscopy (SEM) was used for image recording surface of these ceramic oxides, while the energy dispersive X-ray technique (EDS) with mapping of chemical elements, was used to qualitatively determine the chemical composition of the samples. The optical properties were studied by electron spectroscopy in the region of ultraviolet-visible (UV-vis) in which the values of energy band gap (𝐸𝑔𝑎𝑝) were estimated, and by means of photoemission spectroscopy was studied effect of 𝑁𝑖2+ ions in photoluminescence (PL) of silver tungstate. The XRD patterns of the single-phase crystallization of all samples in the orthorhombic structure of the silver tungstate and they have indicated a long range structural order. Small changes in network parameters and atomic coordinates, indicate the existence of distortions on the cluster [𝐴𝑔𝑂𝑛] (𝑛 = 2, 4, 6 and 7) and [𝑊𝑂6] and inserting the 𝑁𝑖 atoms in the crystal lattice 𝛼-𝐴𝑔2𝑊𝑂4. Changes in MR spectra and peak detection regarding 𝑁𝑖 − 𝑂 bond in IR spectra of solid solutions suggest the introduction of 𝑁𝑖 atoms in the 𝐴𝑔2𝑊𝑂4 network.The SEM images showed that the ions 𝑁𝑖2+ were able to modify the morphology of silver tungstate microcrystals, in the studied conditions. The EDS spectra and map images indicated that all materials are composed of the elements 𝐴𝑔, 𝑊 and 𝑂, as expected. They also noted the presence of 𝑁𝑖 element in the composition of solid solutions. The values of 𝐸𝑔𝑎𝑝 estimated by means of UV-vis spectra suggest the existence of intermediate states in the forbidden area, from structural defects. The changes in spectra of PL samples indicated that the 𝑁𝑖 atoms alter the effect of the order-disorder, and the average distance favored over energy emissions associated with shallow defects.
Comportamento em fadiga de hastes femorais para artroplastia de quadril com superfícies modificadas
(Universidade Federal de São Carlos, 2015-07-20)
Oliveira, Bruno José Silva de
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Oliveira, Nilson Tadeu Camarinho de
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https://lattes.cnpq.br/5165925219822865
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Bolfarini, Claudemiro
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https://lattes.cnpq.br/9231627080617037
Nowadays, titanium and its alloys are the materials of choice for the production of implants for hip arthroplasty, a surgery that aims for the improvement of the quality of life of patients that bear articular pathologies of the hip. With the increase of life expectancy, it becomes more and more important that these implants withstand greater times of implantation, avoiding revision surgeries, which represent higher costs and risks. Today, this need is approached by different ways, among them the functionalization of surfaces, that permit better osseointegration of the prosthesis at the site of implantation and, consequently, better results on the application of products in the long term. One of the ways to perform this functionalization is through chemical etching, one of which (H3PO4+NaOH) has been chosen to perform modification of surfaces previously treated by titanium plasma spray (TPS+AQ) on finished femoral prostheses. As a control, another group of prostheses was employed, treated with technology already in the market, coated by titanium plasma spray with posterior deposition of two phases of calcium phosphate with different solubility (TPS+HA). The prostheses were submitted to topographical analyses via SEM, analyses of roughness profiles and increase of effective surface area by confocal microscopy and transversal analyses of coatings via SEM, subsequently treated by image analysis software for determination of attributes of porous coatings according to ASTM F1854. After that, all prostheses were tested to evaluate their fatigue behavior according to ISO 7206-4 and the presence of cracks via penetrant liquid testing. All the specimens survived the fatigue test, refuting the hypothesis that the modification via TPS+AQ reduces the fatigue resistance of femoral stems when compared to a control group, TPS+HA, under a normalized test protocol.
Docência no ensino superior : aprendendo a ser professor de contabilidade
(Universidade Federal de São Carlos, 2015-07-20)
Ferreira, Marcelo Marchine
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Reali, Aline Maria de Medeiros Rodrigues
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https://lattes.cnpq.br/3250195451890332
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https://lattes.cnpq.br/8568761570800104
Inserted in the field of Teaching in Higher Education, this research aimed to understand which conceptions about being a teacher underlie and give meaning to teaching accounting professors in higher education. Of socio-constructivist approach the theoretical axis approached initially, historical and organizational aspects of the profession and accounting education in Brazil, shedding light on elements of context that are actors on "teaching" and "being a university professor." Following treated on training, professional development and teachers working in higher education, inter-weaving relationships with teachers knowledge in Tardif perspective. Also specific issues to understand the teaching and the accounting education articulated at the prospect of Schön on the practical-reflective teaching for the exercise of professions were treated. Methodological research was qualitative guidance as a general strategy. The data collection was carried out through semi-structured interviews applied to 12 teachers of Accounting courses of Unespar - University of Paraná. The content of the interviews sought to cover professional development paths (teaching and non-teaching), the formative processes of teaching and the experiences and experiences in teaching the investigation. Analyses were carried out basing on the Discursive Textual Analysis, a method that is between the content analysis and discourse analysis. As a result, it is possible to consider that accounting professors perceive themselves more as teachers, accountants and have conception that teaching is conducting activity that extends from the professional accounting field. The mental representation that move their teaching actions are anchored in the logic of technical rationality, present largely in the accounting professional practice scope. Your thoughts and your teaching practices are impregnated and conditioned from the instrumental perspective of technical rationality, where "being a teacher" and "teaching" are taken in a breeding prospect of models and forms of reductionist action. The "being a teacher" it is also anchored in self perception they have to be more counter-teachers than teachers-counters. The "be accountant" seems to be more present in their teaching conceptions of what "being a teacher". This is an argument that can be backed up by data from research that showed high concern teachers domain technicalprofessional content. Also, both the activities that are most present in their doings teachers - teaching undergraduate and general administration and university management - as also by that are more missing (which some hold): research and extension.
Estudo das propriedades mecânicas do aço ao boro 50B35 com diferentes tamanhos de grãos
(Universidade Federal de São Carlos, 2015-07-22)
Santos, Ricardo Jonatas Cerutti
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Ishikawa, Tomaz Toshimi
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https://lattes.cnpq.br/5726055117451807
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Bolfarini, Claudemiro
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https://lattes.cnpq.br/9231627080617037
Boron steel has excellent hardenability due to the addition of small quantities of boron. Boron atoms reduces the nucleation rate of ferrite and bainite [1]. It is known that austenitizing temperature and time and cooling rate are the main factors responsible for hardenability loss on boron steel. The austenitizing temperature relates to the boroncarbide precipitation that happens during the heat treatment. The boroncarbide precipitation is related to the austenitization temperature during heat treatment. The austenitization time defines the grain size condition that during cooling may or not transform into martensite which is decisive to the final properties. This study was conducted to simulate different grain sizes for a given boron steel (50B35), keeping the austenitizing temperature and the cooling rate constant, so that the only variable was the grain size. Therefore, the objective of this study was to understand the grain size effect on boron steel by keeping or not the hardenability effect and characterize the non-martensitic phases like ferrite and bainite and its consequences on the mechanical properties. It was observed fully martensitic structure for finer grain size (ASTM N.5), loss of hardenability characterized by the presence of bainite, for intermediate grain size (ASTM N.4) and hardenability recovery, by increasing the martensite percentage for bigger grains size (ASTM N.3). To conclude, there is a limit for the boron atom to lead the hardenability effect, from a given grain size the effect of hardenability is driven by the grain size itself, like in a normal carbon steel. There was loss on the ductility when increasing the austenitic grain size. For intermediate grain size both yield and tensile strength were reduced and it can be associated to the presence of bainite. For bigger grain size, both yield and tensile strength were recovered to levels near those observed at that for smaller grain size but without recovering ductility.
Desenvolvimento de procedimento para determinação fotométrica de etanol em bebidas destiladas sem uso de reagentes explorando o efeito Schlieren
(Universidade Federal de São Carlos, 2015-07-23)
Silva, Diogo Santos
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Reis, Boaventura Freire dos
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https://lattes.cnpq.br/7619359855870896
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https://lattes.cnpq.br/6436952522509024
The knowledge and applications of Schlieren effect on the flow injection analysis process (FIA) showed that using the variation of refraction index, formed by concentration gradients during sample dispersion in carrier fluid is a practicable method for ethanol determination in distilled drinks. Based on this effect, we developed an analysis module that performs photometric measurements using flow cells of long optical path length. The method here proposed allowed the determination of ethanol without using reagents. Control of the devices, including solenoid valves and solenoid mini-pumps, was carried out by a microcontroller (Arduino Due) coupled to a microcomputer through serial interface. The control and data acquisition software was written using Visual Basic 6.0, C and C ++ languages. The flow analysis module developed for this study achieved an analytical frequency of 110 samples per hour, sample consumption of 400.2 μL and generation of 2.9 mL of effluent per determination.
Produção e caracterização de ligas do sistema Al-Co-Fe- Cr e aplicações como recobrimentos para barreiras térmicas
(Universidade Federal de São Carlos, 2015-07-23)
Wolf, Witor
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Botta Filho, Walter José
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https://lattes.cnpq.br/8956458007749112
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https://lattes.cnpq.br/9656544805116765
Since the discovery of the quasicrystalline alloys by D. Schechtamn in 1984, many research has been done in terms of coating application of these materials and their intermetallic approximants due to their physical and transport properties as: high hardness, low friction coefficient, low superficial adhesion energy, high oxidation resistance and low thermal conductivity. The low thermal conductivity combined with the thermal expansion in the same range of the usual metallic materials used as substrates in coatings make these alloys as potential substitutes for the traditional ceramics thermal barrier coatings. The alloy Al71Co13Fe8Cr8 has been studied in terms of thermal barrier applications. This alloy presents interesting properties and characteristics for this application. However, the information about this alloy on the literature is scarce and contradictory. In this sense, in the present work, the Al71Co13Fe8Cr8 alloy was selected for coating fabrication aiming to obtain a consistent structural characterization of this alloy. Results show that the Al71Co13Fe8Cr8 alloy is not a quasicrystalline forming composition. It is actually composed by two intermetallic phases, one hexagonal and the other monoclic, Al5Co2 and Al13Co4 respectively, which are approximant phases of the decagonal QC with the interesting physical and transport properties presented by the quasicrystalline phase. The coatings were also studied in terms of the interdifusion phenomena between the coating and a steel substrate at high temperatures. Alloys around the Al71Co13Fe8Cr8 compositional range were also fabricated in order to evaluate the phase formation on the aluminum rich region of the Al-Co-Fe-Cr system. Several intermetallic phases were observed, most of them quaternary extensions of Al-Co intermetallic phases. A quasicrystalline phase was also observed in one of the studied compositions.
Atividade orientadora de ensino de geometrias na perspectiva lógico-histórica : unidade entre ensino e aprendizagem na formação inicial de professores de matemática
(Universidade Federal de São Carlos, 2015-07-23)
Santos, Talita Secorun dos
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Sousa, Maria do Carmo de
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https://lattes.cnpq.br/6637658562543505
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https://lattes.cnpq.br/9052886361360320
The manner Teaching Activities (TAs) of different types of Geometry may be presented as a unity between teaching and learning, or rather, as Teaching Guiding Activity (TGA) in the initial formation of teachers, is discussed. It has thus been presumed that the logical and historical perspective may become a didactic factor in teachers´ initial formation when TAs are developed as from the subject-group-class-narrative dynamics. Current qualitative research was developed based on the following questions: Did teaching activities developed in the disciplines ‘Geometry’ and ‘Euclidian Geometry and Topic for Non-Euclidian Geometries’ generate aims and motives to teach and learn to teach Geometries? Did the activities experienced by the subject-group-class dynamics and posting of narratives become a TGA? Which are the productions of meanings, aims and motives explicit in the narratives prepared by undergraduates of the Math course during their experience in TAs of Geometries within the logical and historical perspective as from the subject-group-class dynamics? Data were retrieved from questionnaires, TAs, field diaries and narratives posted on the Internet. The empirical material was analyzed by four descriptive and analytic categories emerging from three-fold data, namely, From the isolated to the collective; The New; From Learning to Learning to Teach; Contradictions. Results show that Geometry TAs within the logical-historical perspective as from the subject-group-class-narrative dynamics trigger information related to the appropriation of theoretical knowledge, teaching of theoretical knowledge, organization of teaching, pedagogical activities and research in most people involved in the teaching-learning process.
Obtenção de LiFePO4 via síntese assistida por microondas, caracterização e testes eletroquímicos visando sua aplicação como catodos em baterias de íons lítio
(Universidade Federal de São Carlos, 2015-07-24)
Smecellato, Pamela Cristina
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Biaggio, Sonia Regina
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https://lattes.cnpq.br/0418215244233120
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https://lattes.cnpq.br/0702703799059549
In this work, studies on the optimization of the LiFePO4 synthesis were performed, aiming to obtain a product, at shorter calcination times, with smaller particle size and promising electrochemical properties for applications as cathode material in lithium ion batteries. Crystalline LiFePO4 was synthesized through the combination of carbothermal reduction and microwave-assisted solid-state reaction. The precursors LiOH.H2O, FePO4.4H2O, glucose and graphite were exposed to carbothermal reduction at 200 ºC during 3 h and subsequently calcined by irradiation with microwaves at 800 W for varying times, from 1 to 5 min. The obtained products were analyzed through thermal analysis using TGADTG and DSC curves. Their structural, morphological and electrochemical properties were investigated by means of X-Ray diffractometry, infrared spectroscopy, scanning electron microscopy and cyclic voltammetry, respectively. The product obtained at 3 min, besides presenting the smallest particle size (100 to 150 nm), was the only one with a crystalline phase and a voltammetric profile characteristic of LiFePO4 between 3,2 and 3,7 V vs. Li/Li+ in a solution of 1 mol L-1 LiClO4 in EC/DMC (1:1 V/V). The electrode was prepared with LiFePO4, acetylene black and PVDF (85:10:5 m/m/m), and the diffusion coefficient of Li ions in the LiFePO4 phase was estimated as 0,29.10–14 cm2 s-1. Galvanostatic charge-discharge tests were performed with this electrode between 3,8 and 3,1 V vs. Li/Li+ under the same experimental conditions as in the cyclic voltammetry. The obtained LiFePO4 presented an initial specific capacity of 100 mA h g-1 at C/4, considering 39,8% of active material.
Avaliação da capacidade inibidora da corrosão de aminas a partir do aspecto molecular
(Universidade Federal de São Carlos, 2015-07-24)
Lima, Eduardo Galdino Alves
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Tsunoda, Mitsukimi
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https://lattes.cnpq.br/7842686360162069
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https://lattes.cnpq.br/1671943056753690
This project aims the evaluation of some amines as corrosion inhibitors in carbon steel alloys amid hydrochloric acid (pickling bath). For that, analytical aspects of corrosion process has been considered and the results were interpreted considering the molecular interaction with the metal surface.
Acondicionamento de hidroxiapatita nanoparticulada em sachês biodegradáveis para aplicação como fertilizante mineral
(Universidade Federal de São Carlos, 2015-07-24)
Sciena, Camila Rodrigues
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Paris, Elaine Cristina
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https://lattes.cnpq.br/8475640212486290
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https://lattes.cnpq.br/4618947245242318
In 2013, the portion of the Brazilian agrarian system in the gross domestic product reached 22.54% according to CEPEA. The production of agricultural commodities is extremely dependent on imported fertilizer, as 74.6% of the material used on national soil has foreign origin. In the case of phosphate fertilizers, the main route for production is by adding sulfuric acid to the phosphate rock, producing phosphoric acid and calcium sulfate, also known as phosphogypsum. This is a major environmental problem generator, since large quantities of by-product are stored without an end use. In order to minimize this issue, this work aims to examine the release of phosphate by hydroxyapatite (HAP) solubilization synthesized in the laboratory in order to assess your application as mineral fertilizer. Since the HAP have low solubility, it was aim at synthesizing a nanostructured material to aid its dissolution, since this property is, normally, dependent on the particle size. In order to minimize the effects of leaching of the soil material were processed blends of biodegradable starch and pectin for the production of sachets for packaging of HAP particulate as well as the slow release thereof. The hydroxyapatite used in this study was obtain by wet coprecipitation method followed by hydrothermal treatment or not. With the use of surfactants and variation in the hydrothermal treatment time, rod and whiskers morphology materials were obtain. For characterization of the synthesized samples was using an x-ray diffractometer. The results from this showed that the particles produced in this study are present in a single step without the occurrence of undesirable secondary phases. The FTIR and FTRaman confirmed the result obtained by XRD. From the Zeta potential was observed that the sample of smaller surface area is made more stable in solution than the rest of the analyzed compounds. It was also observe that increasing the crystallinity of the material resulted in a lower solubility at neutral pH thereof. The release assay was repeated at acidic pH, indicating that more acidic conditions lead to higher dissolutions of samples. From the release tests it was found that the samples had higher solubility at neutral pH, approximately 4.5 mg L-1 of phosphorus released, were smaller and less degree of crystallinity. For the larger and more crystalline sample solutions formed concentrations of at most 1.5 mg L-1. Since the tests made at acidic pH showed that the samples, regardless of the size and crystallinity presented are easily solubilized. All solutions obtained showed the phosphorus concentration around 15 mg L-1. Blends were used to condition the HAP, and chosen to be used in the present work was to TPS 75: 25 PEC, due to its greater flexibility and greater resistance in solution. The solubility obtained for the samples contained in the sachet showed high values, even at pH close to neutral, indicating its potential use.
Concessões de serviços turísticos em áreas protegidas: uma análise da Cachoeira de Morangaba, Jundiaí/SP
(Universidade Federal de São Carlos, 2015-07-25)
Ribeiro, Sílvia Cristina Ignácio
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Neiman, Zysman
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https://lattes.cnpq.br/6435341856481082
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https://lattes.cnpq.br/2199680453743623
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Lobo, Heros Augusto Santos
Protected areas are vital components for the maintenance of natural areas and landscapes, conservation and preservation of biodiversity and the provision of opportunities for the development of local communities, ecotourism, environmental education and scientific research. However, these areas are in great challenges for most countries, especially in regard to its funding and management. In this perspective, this study shows the historical process of evolution of the issues related to the preservation and conservation in the world, and the historical, economic, social and legal conservation units in Brazil. In order to show some of the mechanisms and models of management systems for protected areas, the study provides an analysis on the concessions of tourist services and the types of possible partnerships between the public and private sectors, Non-Governmental Organizations and institutions. The case study of the waterfall Morangaba Jundiaí, SP, analyzes the public use that is permeated by different interests and meanings, its relationship with ecotourism and management systems available to the site. The survey results identified the potential and feasibility of of partnerships with NGO, educational institutions and private companies.
Efeitos espaço temporais da poluição pontual e não pontual em uma bacia hidrográfica subtropical : ecohidrologia como ferramenta de controle
(Universidade Federal de São Carlos, 2015-07-27)
Gatti Junior, Pedro
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Tundisi, José Galizia
;
https://lattes.cnpq.br/5730659239785432
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https://lattes.cnpq.br/2791182967599526
Contaminants are introduced into aquatic ecosystems, both from point and diffuse sources and usually are deposited in the sediments of lakes and reservoirs. The input of diffuse pollutants in the environment is of difficult control and identification, while the control of point sources is more efficient because they are easily identified. However, the frequent discharges of effluents, althought undergoing treatment, may change the input of elements and substances in a given region. The aim of this study was to assess the spatial-temporal influence of point and non-point source pollution on the characteristics of surface water and sediment in a watershed with well-marked seasons. In addition, concepts and attempts at ecosystems restoration in different regions were reviewed in order to understand the main drivers of abiotic-biotic regulation among watersheds and aquatic ecosystems, based on the principles of Ecohydrology. For this purpose, the concentrations of Cd, Cr, Fe, Ni, Zn, Pb, Al, Cu, Mn, Hg, As, Se, total phosphorus, total nitrogen and ions in water and sediment were examined. Furthermore, levels of metals (Al, Fe, Mn, Cu, Zn, Hg and As) in the sediment profile of stations under of the influence of different impact were evaluated. This study showed that the point source pollution promote a high load of contaminants in sediment, regardless of the season. Furthermore, the point pollution sources seem to be spatially and temporally the main cause of reservoir sediment chemical composition due its frequent effluent release. This study also indicates that, despite several biogeographical differences, hydrology seems to be the main factor that controls the primary and secondary production and sustainability in rivers and lakes (reservoirs). In conclusion, the hydrology in the tropics seems to decrease the expected effects of a higher temperature. Therefore, to increase resilience in tropical freshwaters integrated actions according to hydrological stages are highly recommended.
Heteroptera aquáticos e semiaquáticos (Gerromorpha e Nepomorpha) do sudoeste da Amazônia
(Universidade Federal de São Carlos, 2015-07-27)
Vilardi, Gabriel Cestari
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Melo, Alan Lane de
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https://lattes.cnpq.br/5549358735432795
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Strixino, Susana Trivinho
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https://lattes.cnpq.br/1804083229761186
This study aimed to develop a species list of aquatic and semi-aquatic Heteroptera, including distribution to the world and Brazil and new records, gather information on habitats and habits of genera, present sampling methods and preservation of samples, analyze the influence of environmental variables altitude, vegetation cover, presence within protected areas, environmental integrity (RCE) and preferred substrates on the fauna richness, abundance and composition. 2009 specimens were sampled, of which 1150 have been identified to species level. A list of 73 species of Heteroptera (Gerromorpha and Nepomorpha), distributed in 13 families and 33 genera has been prepared based on surveys carried out for this study and literature. In total there are 34 species of Gerromorpha and 39 Nepomorpha. Of these species, 32 are new records for RO, 13 for the Brazilian Amazon and one for Brazil. For fauna analyzes with environmental variables were analyzed 59 species in 30 genera and 13 families. The species accumulation curve has not reached asymptote, indicating that studied area has greater richness than sampled. The richness found in field accounted for 60% of Jacknife 2. Abundance was related to habitat integrity and water flow. Richness in lotic systems was associated with vegetation cover, solid bedrock and stream size. Habitat integrity and vegetation cover were related to the composition of the studied fauna. The identification keys have 39 genera (19 Gerromorpha and 20 Nepomorpha) arising from collections made for this study and literature review and includes genres not covered in previous studies for the Brazi lian Amazon.
Educação das relações étnico-raciais e produção de textos na escola: traços, letras, cores e vozes das crianças
(Universidade Federal de São Carlos, 2015-07-28)
Bonifácio, Solange
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Silva, Douglas Verrangia Corrêa da
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https://lattes.cnpq.br/7699024298055259
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https://lattes.cnpq.br/6520433300866884
This study is dedicated to understanding the development of school educational processes guided by the inter-relationship between education of ethnic-racial relationships and activities of reading and writing texts production, during proposals made in the course of an intervention carried out by the teacher-researcher. Teaching strategies, planned for intervention, were guided by the Ministry of Education Report 003/2004 and teaching and learning objectives related to reading and writing literacy in children, so it was developed with students from seven and eight years – 2nd year (1st series) – from a public school in the State of São Paulo. It is characterized as a qualitative research methodology inspired by phenomenology, which contributed to understanding the phenomenon of the interface of education of ethnic-racial relations and language development. It is based, theoretically, in the discussion on the approach of the ethnic racial relations of Silva (2009), problematizing the work of textual production from Possenti (2001; 2002; 2013), Tfouni (1988, 2011) and Assolini (2006), seeking to understand the representations (das Smolka, 2012) and the process of construction of the black identity (MUNANGA, 2003; Gomes, 2003) of children in the process of development of reading and writing in school. The data were recorded on video and field note registers, which after transcription and systematic analysis revealed the dimensions from three perspectives: teaching activities; children’s development; and collective interactions. The contribution of this research concerns the possibility of extending the possibilities to understand the contributions of education of ethnic-racial relationships to the acquisition of the written language in the context of school. It was possible to identify that, in the environment studied, the development of students identity was closely related to the development of important skills of reading and writing in positive and constructive interconnections.
Mobilidade cicloviária em viagens a campi universitários - estudo de caso
(Universidade Federal de São Carlos, 2015-07-29)
Grau, Roberta Iza
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Ferreira, Marcos Antonio Garcia
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https://lattes.cnpq.br/2643134259454260
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https://lattes.cnpq.br/2259622376755629
Nowadays, universitary campi are suffering from negative reflexes brought by the high motor vehicles’s rate. This rate have been troubling users’ daily commutings and could be lessened if active modes of transportation, walking and cycling, were adopted. The aim of this research was the comprehension of behaviour change capacity of an academic comunity to adopt the bicycle as a mode of transportation for commuting to São Carlos’ Federal University, São Carlos, Brasil. In this work, a survey was conducted, via internet and one-on-one interviewing, with 473 participants. The survey was adapted from Smith et al. (2004) and based on Prochaska and DiClemente (1982, 1983) Transtheoretical Model of Behaviour Change, MTMC. The participants were professors, technical-administrative employees, graduate and post-graduate students. The sample’s profile was of a graduate and post-graduate student, aging 18 to 35 years-old, residing up to 5 km away from the campus and using motor vehicles to commute. MTMC’s results showed the bicycle’s major motivator and barrier to be the schedule freedom and the lack of cycling infrastructure, respectively.
Escrita no espaço digital : criação e atribuição de autoria em fanfictions
(Universidade Federal de São Carlos, 2015-07-30)
Camargo, Ana Rosa Leme
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Abreu, Ana Silvia Couto de
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https://lattes.cnpq.br/7461517670259813
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https://lattes.cnpq.br/1029796009260218
Notre principal objectif est de comprendre les productions de fanfictions qui circulent sur la toile. Nous prétendons, en particulier, comprendre les motifs qui viennent s'établir sur le statut d'auteur, ayant en vue la manière d'écriture utilisée par les ficwriters et les processus de légitimation auxquels ils sont soumis. Nous avons pris comme corpus les sites Fanfiction.net et Nyah Fanfiction, ayant comme base théorico-métodologique l'Analyse du Discours français. Comme résultats, nous avons mis en évidence, d‟ábord, que le ficwriter peu ou non être considéré un auteur, cela dépendant de sa communauté de lecteurs, espace impair de légitimation ; en suite, nous avons fait ressortir le paradoxe du processus d'écriture marqué par des reformulations, des remix, mais fortement régulé dans l'écriture en ce qui concerne l'ordre de la technique, de l'outil, de la norme linguistique.
Análise da formação do profissional de administração a partir de dissertações e teses produzidas em Programas de Pós-Graduação em Educação
(Universidade Federal de São Carlos, 2015-07-30)
Gomes, Daniel Fernando Matheus
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Lima, Emília Freitas de
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https://lattes.cnpq.br/5515637339275988
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https://lattes.cnpq.br/6702379479365556
The research deals with the formation of the Management professional, through the analysis of thesis and dissertations produced in graduate programs in Education. Is constituted as bibliographic research, having been developed in three stages: collection of bibliographic material; analysis of selected studies; integrating synthesis of the results. Defend that the role of Business Administration courses is to provide a critical view of reality, which means, in this case, does not offer a limited training to the demands of the labor market. To that end, structured work around the following research question: "what studies of the course of Directors produced under the Graduate Program in Education between the years 2004-2013 show on vocational training at the undergraduate level administrator?" Such a question has served as reference for the preparation of the overall objective: to analyze dissertations and thesis produced in Education on administrator training in order to provide information to think again that training in the Brazilian higher education. The overall objective was deployed in the following specific: raise Administration course trajectory in Brazil; analyze dissertations and theses on the design of them contemplated curriculum; analyze dissertations and theses about the Administration 's views on them defended and criticized ; analyze dissertations and theses about the labor market of ideas and the world of work present in them . The research corpus was composed of twenty- five papers coming from the graduate in Education in Brazil from 2004 to 2013. The programs theoretical framework is guided primarily in the Gimeno Sacristán's ideas on the process view of the curriculum; the critical analysis of management concepts found throughout its history; and the concepts of training for the labor market and the world of work. The main results presented in dissertations and theses analyzed in this research indicate that regarding the curriculum, the meeting addressed partial aspects, considering the design of Gimeno Sacristán, and the majority had as focus of analysis the curricular text, represented by the Project pedagogical Course , and few have analyzed the curriculum lived, or at work; on the design of Directors present in the works, almost all of them found lined courses in the capital 's perspective, involving a type of training geared to the labor market, although the authors of dissertations and thesis have advocated other that considers the interests of whole of society and be guided by the critical insertion of graduates into the labor market, consistent with the view taken in this research.
Obtenção de nanocristais de celulose a partir do resíduo da produção de etanol do bagaço de cana-deaçúcar pela rota enzimática
(Universidade Federal de São Carlos, 2015-07-30)
Camargo, Lais Angelice de
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Mattoso, Luiz Henrique Capparelli
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https://lattes.cnpq.br/5839043594908917
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https://lattes.cnpq.br/6529712290982189
This study addressed the use of solid residues from the process of cellulosic ethanol production using the enzymatic hydrolysis of sugarcane bagasse for the production of cellulose nanocrystals (CNCs). Bagasse submitted to two types of pretreatments (steam explosion - SESB and hydrothermal - HSB) was hydrolyzed with two different enzymatic loads using a commercial enzymatic extract. The solid residues generated after the hydrolysis were purified with NaOH 5% (w/w) at 55 °C and H2O2 35% (v/v) followed by an acid hydrolysis at 45 °C with H2SO4 60% (w/w) and extraction of 30 min in order to obtain the CNCs. The samples of SESB and HSB presented cellulose contents of 61 and 54%, respectively. The conversion in the enzymatic hydrolysis step ranged from 25 to 55% for SESB and 33 to 59% for HSB, along with the increase of enzymatic loading. And besides the release of glucose into the liquid phase, it was also generated solid residues with significant quantity of cellulose to be used for CNCs production. Due to decreasing of the cellulose crystallinity indexes (CI%) of the residual solid, a purification procedure was necessary, which raised the CI by about 30% for SESB residues and approximately 25% for HSB residues. The resulting CNCs presented proper physical and chemical characteristics, such as degradation temperature exceeding 230°C and crystallinity around 79% for both matrices. The CNCs obtained feature of needle with length between 193 and 246 nm and diameter of between 17 and 30 nm. These results indicate that CNCs produced from the residual streams of enzymatic route of cellulosic ethanol production from the sugarcane bagasse have the characteristics suitable for this type of product. Therefore, the use of these solids residues for new materials production, such as NCCs for use in different applications proved to be potentially promising for adding value to the bioenergy sector.
Desenvolvimento de procedimentos eletroanalíticos para a determinação simultânea de analgésicos em formulações farmacêuticas e fluidos biológicos empregando o eletrodo de diamante dopado com boro
(Universidade Federal de São Carlos, 2015-07-30)
Santos, Anderson Martin dos
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Fatibello Filho, Orlando
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https://lattes.cnpq.br/9859737944357808
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https://lattes.cnpq.br/0116064177497070
In this master dissertation, electroanalytical procedures for the simultaneous determination of analgesics paracetamol (PAR) and codeine (COD) and, PAR and tramadol (TRA) in pharmaceutical samples and biological fluids using a cathodically pretreated boron-doped diamond electrode (BDDE) were developed. In the first procedure, the square-wave voltammetry (SWV) was employed for the simultaneous determination of PAR and COD, using as supporting electrolyte 0.2 mol L−1 acetate buffer (pH 4.0), and the analytical curves were linear in the concentration range from 0.2 to 95.8 μmol L−1 for PAR and from 0.2 to 95.8 μmol L−1 for COD, with detection limits (LODs) of 0.018 μmol L−1 and 0.014 μmol L−1, respectively. The second procedure developed for the simultaneous determination of PAR and COD was based on a flow injection analysis with multiple pulses amperometric detection (FIA-MPA), using as transport solution a 0.05 mol L−1 H2SO4 solution. The potential pulse application sequence in function of time was 950 mV / 200 ms (potential where only the PAR oxidation occurs) and 1400 mV / 100 ms (potential where both analytes suffers oxidation (PAR and COD)). The obtained analytical curves show linearity from 0.08 to 100.0 μmol L−1 for PAR and 0.05 to 10.0 μmol L−1 for COD, with LODs of 0.030 e 0.035 μmol L−1 for PAR and COD, respectively. The analytical frequency was estimated as being 90 determinations h−1. After, an electroanalytical procedure using FIA–MPA it was developed a simultaneous determination of PAR and TRA. The potential pulse application sequence in function of time was 850 mV / 200 ms (potential where only occurs the PAR oxidation) and 1600 mV / 100 ms (potential where both analytes suffers oxidation). The obtained analytical curves show linearities between 1.0 to 100.0 μmol L−1 and 0.08 to 10.0 μmol L−1 for PAR and TRA, respectively, and the LOD was 0.030 μmol L−1 for PAR and 0.040 μmol L−1 for TRA. Finally, all developed procedures were employed for the simultaneous determination of these compounds (PAR + COD e PAR + TRA) in pharmaceutical samples, where the obtained results agree with those results obtained using a comparative method (HPLC – High-performance liquid chromatography). These compounds were simultaneously analyzed in synthetic biological fluids (urine and human serum) by addiction and recuperation method, where the recuperations obtained ranged from 90.8 to 108%.